root (1) - Linux Man Pages

root: Interpretor of C++ for the ROOT framework


root - Interpretor of C++ for the ROOT framework


root [options] files ...


ROOTs Object-Oriented Technologies.

root is a interactive interpretor of C++ code. It uses the ROOT framework. For more information on ROOT, please refer to

An extensive Users Guide is available from that site.


-? Show summary of options.
Run in batch mode without graphics
Execute the command passed between single quotes
Do not execute logon and logoff macros as specified in .rootrc
Exit after processing command line macro files
Do not show splash screen


System-wide configuration file. <etcdir> either ROOTSYS, or something like /etc/root
ROOT C++ class libraries. <libdir> is either ROOTSYS/lib or something like /usr/lib/root.
The header files for the ROOT C++ class libraries. <incdir> is either ROOTSYS/include or something like /usr/include/root.
~/.rootrc, ./.rootrc
User configuration file


The ROOT team (see web page above):
Rene Brun and Fons Rademakers


This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA


This manual page was written by Christian Holm Christensen <cholm [at]>, for the Debian GNU/Linux system (but may be used by others).


rootcling(1), cling(1), root-config(1), rootd(1), h2root(1), g2root(1)

For extensive documentation on the ROOT system, see

A Users Guide is available online.

The classes of ROOT are all documented by the automatic documentation system, and is available online.